Engine cylinder



A J. VVEEYT ENGINE CYLINDER Filed Jan. 29, 1925 INVENTOR ATTOR NEYS Patented June 5, 1928. i

. Emma e-znmnnn Application filed. i nite type employing castiron liners, and' it has.

for its object -to positively anchor the heated or, combustion end of a liner in place to'prevent inward contraction thereof in servicej. f i

I have found,'in practice, that where acast iron-liner enters-the. highly heated. region of an engine that the "heat seems to work some kind of molecular effect in the metal resulting in inward contraction ofthe liner with consequent binding effect with'respect to the piston and an area which is a poor conductorof heat to the cooling space. This effect may take months to. make itself noticeable, and the rapidity of its development seems to be a function of the maximum engine temperature. Liners have been bored out on this accountto fit pistons after being in service for some time. 3-The bad conductive condition for heat isconducive to rapid deterioration of the liner. difiiculties are even more pronounced with Diesel or oil engines, where the temperatures run-'muchhigher than with ordinary gas engines, resulting in rapid deteroriation and necessary replacement oflinersand in poor engine operation. To the end of overcoming.

this physicaleffect of radial contraction o the combustion end of the liner away from the cylinder, I construct the latter with a part or portion which engages within apart or portion of the liner,thereby{preventing contraction of the heated end 0 away from the cyllnder.

Apparatus made n accordance with my the liner invention is illustrated in, the accompany-- ing drawings, forming a part of this apphcation, in which Fig.1 is a fragmentary sectional view ofone type of engine cylinder incorporatin my improvement; and Fig. 2 is a sectiona view of another type of engine cylinder having my improvement appl edthereto. Referring now to the drawings for a better understanding of my-invention in Fig- 1, I show an engine cylinder 10, which may be made of material resistant to tensile stresses, such as steel, having a combustion end portion 11. A liner 12' is arranged within the cylinder and one end thereof extendsto the most highly heated region of the cylinder construction and a piston 13 fits the liner. The liner 12 is made of material These effects and a9, ia zs. serieiiie. 5-,;68

as cast iron.

j, 1 d ifl e oi the most hi'g fhaving the quality of resisting wear, such ih-place gb'y structure; of "the cylinder. By

end-of the liner, thereby assuring the maintenance of good heat conductive relation between the liner and the cylinder and the prevention ofdeterioration of the liner due:

f ARTHURJ. wns'r, or nnrnnnm,-rmsnvamh, re tness-human amt Y oourm.-j"'

pirevent inward contraction ly heated en d portion of thelinenydue to the heat;curing{,efi'ectjust 'referred .to, such portion-is positively held. I

-way of example, I show a cylinder arranged to receive the liner so that, when theliner The lip or shoulder 14 positively prevents. any inward contraction of the combustion to overheating incident to inward contraetion which would otherwise take place.

In Fig.2, I show how my invention may be applied to a. type of engine wherein the piston is removable through the end, for example, the horizontal type v of internal combustion engine.

a cylinder 10 having a liner 12 and a piston 13' disposed therein. The combustion end 11 has the same diameter as ,the'diameter of the liner 12so that the piston 13' may be removed by removal of the head 16. The cylinderis provided with openings 17 l 1 and 18 to'receive inlet'and exhaust valves,

art. I

"Owingto the necessity of preserving the In this view,-'I show.

sameinternal diameter for the combustion endll' and forthe liner 12, the mode'of' forthe liner 12' "an-annular groove 20 to receive the annular flange 21 of the liner,

the things .19 fitting in'a counterbored por extending portions of head members; yet

it seems to be new to provide a cylinder with an integral internal annular and axially-extending y L flange to I overlap a liner to prevent radial contraction thereof in the'manner already referred to. i My invention, is, therefore, characterized by'the presence of a. liner, which is engagedby a flange of this character located inwardly of-the head-receiving portion of the cylinder.

Having thus described the invention what I I claim as new and desire to secure by Letters Patent is: I i

In an internal combustion engine, the

combination of a cylinder, a liner 'within .saidvcylinder, and a member extending iniwardly'from the wall of said cylinder and having a lipped portion adapted to engage an end of said liner to prevent, in service; radial-contraction of the liner away from the cylinder, said member being spaced sufrl 7' ciently from the contiguous end of said liner to normally. provide a clearance space,-

whereby the liner is' permitted to expand longitudinally with respect to said cylinder under I service conditions.

In testimony whereof Ii hereunto afiix,

my signature this 23rd day'of January, 1925. I v

ARTHUR J; wEs'r. 

